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Insecticides and acaricides

Chloropicrin

Also known as Trichloronitromethane, Nitrochloroform, Nitrotrichloromethane

CAS 76-06-2Formula CCl3NO2Molar mass 164.38 g/molEC 200-930-9
GHS signal word: Danger. Pictograms: Acute toxicity (severe) Controlled, licensed buyers only
Request as a licensed buyer Safety data
Chloropicrin chemical structure, CCl3NO2, CAS 76-06-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Slightly oily liquid
Melting point
-64 °C
Boiling point
112 °C
Density
Relative density (water = 1): 1.7
Solubility
Solubility in water, g/100ml at 25 °C: 0.162
HS code
290491
Category
Insecticides and acaricides
UN number
UN 1580

What is Chloropicrin?

Plain description, key identifiers and synonyms

Chloropicrin is a C-nitro compound that is nitromethane in which all three hydrogens are replaced by chlorines. It is a severe irritant, and can cause immediate, severe inflammation of the eyes, nose and throat, and significant injuries to the upper and lower respiratory tract. Formerly stockpiled as a chemical warfare agent, it has been widely used in the US as a soil fumigant, particularly for strawberry crops. It is not approved for use within the European Union. It has a role as a nematicide, a fumigant insecticide and an antifungal agrochemical. It is a C-nitro compound, an organochlorine compound and a one-carbon compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
trichloro(nitro)methane
CAS number
76-06-2 CAS number cross-checked
EC number
200-930-9
Molecular formula
CCl3NO2
UNII
I4JTX7Z7U2
InChIKey
LFHISGNCFUNFFM-UHFFFAOYSA-N
InChI
InChI=1S/CCl3NO2/c2-1(3,4)5(6)7
SMILES (canonical and isomeric)
C([N+](=O)[O-])(Cl)(Cl)Cl

Synonyms

  • Trichloronitromethane
  • Nitrochloroform
  • Nitrotrichloromethane
  • Chlorpikrin
  • Larvacide
  • Trichlornitromethan
  • Picfume
  • trichloro(nitro)methane
  • Chlor-O-pic
  • Chloropicrine
  • Dojyopicrin
  • Dolochlor
  • Microlysin
  • Picride
  • Methane, trichloronitro-
  • Pic-Clor
  • Tri-Clor
  • Chloorpikrine
  • Cloropicrina
  • Chloroform, nitro-
  • Larvacide 100
  • Profume A
  • Trichloornitromethaan
  • KLOP
  • Tricloro-nitro-metano
Show all 34 synonyms
  • trichloro-nitromethane
  • 1,1,1-trichloronitromethane
  • OG 25
  • Acquinite
  • Nemax
  • CCl3NO2
  • Cl3CNO2
  • 1,2-Diacylglycerol-LD-PS-pool
  • Chlorpicrin

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Slightly oily liquidexp.
Odour
Intensely irritating tear gas odorexp.
Melting point
-64 °Cexp.
Boiling point
112 °Cexp.
Density
Relative density (water = 1): 1.7exp.
Solubility
Solubility in water, g/100ml at 25 °C: 0.162exp.
Vapour pressure
3.2 kPa (24 mm Hg) at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
164.38 g/molcalc.
Exact mass
162.8995 Dacalc.
LogP (octanol/water)
1.59calc.
Topological polar surface area
43.14 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
043NFPA 704 rating

Hazard statements

  • H302Harmful if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H330Fatal if inhaled.
  • H335May cause respiratory irritation.
Precautionary statements (23)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P320Specific treatment is urgent (see supplemental first aid instructions on the label).
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1580
Transport hazard class
6.1
Packing group
I

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Chloropicrin suppliers

Controlled substance, listings of documented suppliers only, in the documented ranking

Chemical Weapons Convention Schedule 3

Chloropicrin is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: OPCW Chemical Weapons Convention Schedule 3, HS 2022 subheading 2904.91 (chloropicrin)

Our policy on controlled substances
No documented supplier lists it yet

Licensed buyers can post a request for Chloropicrin with their licence. Our compliance team reviews it before suppliers see it.

Request as a licensed buyer

Chloropicrin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Chloropicrin is a broad spectrum fumigant with fungicidal, herbicidal, insecticidal, and nematicidal properties. Chloropicrin supported uses include: pre-plant soil fumigant use at agricultural sites, tree replant sites, and greenhouses, a warning agent use in residential structures before sulfuryl fluoride fumigations, and an antimicrobial remedial wood treatment use. Chloropicrin is currently labeled for use in empty grain bins and empty potato storage/house cellars, but the Agency has received requests to voluntarily cancel these uses.

When used as a pre-plant soil fumigant in agricultural settings and in greenhouses, chloropicrin is used to control weeds, nematodes, insects, and various soil borne pathogens. In existing orchards chloropicrin is used to treat small areas to control weeds, nematodes, insects, and various soil borne pathogens.

Read more

Chloropicrin is also used to control internal wood decay caused by fungi and insects in wood poles, timbers, pilings, and glue-laminated beams.

Disinfecting cereals and grains, in synthesis, especially manufacture of methyl violet, fumigant, soil insecticide, war gas.

Chloropicrin (PS) is used in agriculture as a soil fumigant. It has also been used as a chemical warfare agent (military designation, PS) and a riot control agent. It was used in large quantities during World War I and was stockpiled during World War II. However, it is no longer authorized for military use. Chloropicrin (PS) is an irritant with characteristics of a tear gas. Chloropicrin (PS) has an intensely irritating odor. Inhalation of 1 ppm causes eye irritation and can warn of exposure.

Pharmacological actions

  • Chemical Warfare Agents

Roles

  • agrochemical
  • antifungal agent
  • antifungal agrochemical
  • antimicrobial agent
  • fumigant
  • fumigant insecticide
  • fungicide
  • insecticide
  • nematicide
  • pesticide

Pharmacology

Chloropicrin is a synthetic C-nitro, one-carbon, and organochlorine compound that is a strong lachrymator. Chloropicrin has been used as a chemical warfare agent, fumigant, and pesticide. It is characterized as a slightly oily colorless to yellow liquid with a strong irritating odor, and exposure occurs by inhalation, ingestion, or contact.

How it is made

Prepn: By action of hypochlorites and steam on calcium picrate.

Derivation: ... by nitrification of chlorinated hydrocarbons.

Chloropicrin is formed by chlorinating nitromethane or picric acid with alkali metal or alkaline earth hypochlorites or by treating acetone with concentrated nitric and hydrochloric acids.

Regulatory status

Inventories, regulations and trade controls that list this substance

Chemical Weapons Convention Schedule 3

Chloropicrin is controlled. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed before suppliers see it.

Licensed buyers only, every enquiry is reviewed by our compliance team.

Reference: OPCW Chemical Weapons Convention Schedule 3, HS 2022 subheading 2904.91 (chloropicrin)

Our policy on controlled substances

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 610-001-00-3

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Trichloronitromethane (chloropicrine), Ref no: 325, Annex ref: II/325

Controls

  • Chemical Weapons Convention Schedule 3

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Chloropicrin is traded under.

HS 2904.91Exact HS code

Trichloronitromethane (chloropicrin)

World exports in 2024
$15.4M
+3.3% vs 2023, imports $14.3M
2019 to 2024
Top exporters
  1. United States77.1%
  2. China16.1%
  3. Netherlands4.0%
Top importers
  1. Australia19.8%
  2. Italy19.6%
  3. Chile16.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Chloropicrin is indicative (it was matched by name in the HS nomenclature). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Chloropicrin, based on the data on this page

What is Chloropicrin?

Chloropicrin is a C-nitro compound that is nitromethane in which all three hydrogens are replaced by chlorines. It is a severe irritant, and can cause immediate, severe inflammation of the eyes, nose and throat, and significant injuries to the upper and lower respiratory tract.

What is the CAS number of Chloropicrin?

The CAS registry number of Chloropicrin is 76-06-2.

What is the molecular formula and weight of Chloropicrin?

The molecular formula of Chloropicrin is CCl3NO2 and its molar mass is 164.38 g/mol.

What is Chloropicrin used for?

Chloropicrin is a broad spectrum fumigant with fungicidal, herbicidal, insecticidal, and nematicidal properties.

Is Chloropicrin hazardous?

Chloropicrin carries the GHS signal word "Danger". Main hazards: harmful if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Chloropicrin?

Chloropicrin is usually classified under HS code 290491 (Trichloronitromethane (chloropicrin)). This is indicative, confirm it with your customs broker before shipping.

Can I buy Chloropicrin on CompoundList?

Chloropicrin is a controlled substance. Only documented suppliers can list it, and buyers must upload a valid licence with their request. Every request is reviewed by our compliance team before suppliers see it.

Guides for buyers

Practical guides that help when you source, ship or handle Chloropicrin

Request as a licensed buyer

Upload your licence with the request. Our compliance team reviews it before the documented suppliers see it.
Request as a licensed buyer
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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